ASoC: msm: Support multi channel volume in compressed driver

In compressed driver volume is applied to only left and right
channels in case of multichannel playback. Add support to
apply the volume to other channels such as center, left surround,
left rear surround, right surround and right rear surround
channels if available.

CRs-Fixed: 483614
Change-Id: Ib8a4c1051e2d1505ca680de8a28b7f25d5d23000
Signed-off-by: Jitendra Singh Naruka <jnaruk@codeaurora.org>